Now: In this Feb. 3, 2010 booking photo originally released by the Los Angeles County Sheriff's Department, former 1970s teen idol Leif Garrett, 48, is shown after his arrest on Feb. 1, for allegedly carrying heroin into a Los Angeles subway station. less

Now: In this Feb. 3, 2010 booking photo originally released by the Los Angeles County Sheriff's Department, former 1970s teen idol Leif Garrett, 48, is shown after his arrest on Feb. 1, for allegedly carrying ... more

Photo: Anonymous, AP

Now: In this Feb. 3, 2010 booking photo originally released by the... Photo-4003587.54869 - Houston Chronicle

Then: Robert Downey Jr. (center) is surrounded by Ryan O'Neal (from left) Farrah Fawcett, Cybill Shepherd, and Mary Stuart Masterson on March 5, 1989, at the New York premiere of their new film, "Chances Are."

Then: Robert Downey Jr. (center) is surrounded by Ryan O'Neal (from left) Farrah Fawcett, Cybill Shepherd, and Mary Stuart Masterson on March 5, 1989, at the New York premiere of their new film, "Chances Are."

Now: Actor and Christian evangelist Kirk Cameron (at right) jokes with the audience as he talks about his life, his work and his conversion to Christianity during the Society of World Changers ceremony on April 11, 2012, at Indiana Wesleyan University's Chapel Auditorium in Marion, Ind.

Now: Actor and Christian evangelist Kirk Cameron (at right) jokes with the audience as he talks about his life, his work and his conversion to Christianity during the Society of World Changers ceremony on April